5291221925 has 12 divisors (see below), whose sum is σ = 7157580576. Its totient is φ = 3848161200.

The previous prime is 5291221909. The next prime is 5291221937.

It is a happy number.

5291221925 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5291221925 - 2⁴ = 5291221909 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9620129 + ... + 9620678.

It is an arithmetic number, because the mean of its divisors is an integer number (596465048).

Almost surely, 2^5291221925 is an apocalyptic number.

5291221925 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5291221925 is a deficient number, since it is larger than the sum of its proper divisors (1866358651).

5291221925 is a wasteful number, since it uses less digits than its factorization.

5291221925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19240828 (or 19240823 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 5291221925 is about 72740.7858426069. The cubic root of 5291221925 is about 1742.5503101582.

The spelling of 5291221925 in words is "five billion, two hundred ninety-one million, two hundred twenty-one thousand, nine hundred twenty-five".